Video compression explained: H.264, AV1, ProRes | Lex Fridman Podcast

1. 1. H.264, AV1, and ProRes are primary video codecs, each optimized for different purposes.
2. 2. Video compression uses I-frames, P-frames, and B-frames to efficiently represent motion.
3. 3. B-frames predict from future frames, necessitating a decoding order distinct from display sequence.
4. 4. Video compression involves tuning numerous parameters like resolution, frame rate, bitrate, and GOP length.
5. 5. YouTube manages immense video encoding challenges, delivering diverse global content from professional to user-generated.